000
00295nam a2200121Ia 4500
008
220201s2017 xx 000 0 eng d
100
_a
Chawla Shashi
245
2
_a
A Textbook Of Enviormental Studies
250
_a
9th rep
260
_b
Mc Graw Hill
_a
Delhi
_c
2017
300
_a
8.8
942
_2
ddc
999
_c
10993
_d
10993